Want to know the basic knowledge base of chemistry

Buy a book to read, or borrow a chemistry book for the third year of junior high school.

The basic knowledge of chemistry refers to the properties of matter that manifest themselves in chemical changes.

Further information is as follows:

Chemistry is an undergraduate major in ordinary colleges and universities, which is a chemistry major, with a basic study period of four years and a science degree. On the basis of systematically and solidly mastering the basic knowledge, basic theories and basic skills of chemistry, students majoring in chemistry should also master the basic methods and means of chemical research.

Have a strong sense of innovation and practical ability, have an in-depth understanding of the frontier and development trend of chemistry, understand the basic knowledge of life, materials, energy, environment and other related disciplines, and be able to engage in scientific research, technology, education and other work in chemistry and related fields.

The chemistry major cultivates talents with a high sense of social responsibility, good scientific and cultural literacy, good grasp of basic knowledge, basic theories and basic skills of chemistry, innovative consciousness and practical ability, and can engage in scientific research, technology development, education and teaching in the field of chemistry and related disciplines.

Graduates majoring in chemistry can be engaged in production technology management and scientific research in chemical enterprises such as chemical technology and chemical synthesis, as well as production, management, scientific research and teaching in the fields of chemical engineering, fine materials chemistry and environmental chemistry.

Chemistry is a basic natural science that studies the composition, structure, properties, transformation and application of matter at the atomic and molecular levels. It originates from life and production practices, and continues to evolve with the progress of human society. As an important bridge between the microscopic and macroscopic material worlds, chemistry is one of the main methods and means for human beings to understand and transform the material world.

Different from particle physics and nuclear physics, which study the smaller scale, the material structure of atoms, molecules, ions (groups), chemical bonds, intermolecular forces and other interactions are studied in chemistry, and the scale in which they are located is the closest to the macroscopic in the microscopic world, so their natural laws are also most closely related to the physical and chemical properties of matter and materials in the macrocosm of human existence.

The most classic: Pour oil and vinegar into a pot in a ratio of 3:1 and heat it, but you won't feel hot when you put your hands into it when you see it boiling! And it looks like a frying pan! (This is due to the difference in boiling point).

The most common: The method of making soap: The crystallization of a foamy substance collected after boiling lard and caustic soda (NaOH) together is soap, and the addition of spices is soap.

There are many more, the battery uses the principle of a galvanic cell, and a redox reaction takes place in it.

For example, lime is calcium carbonate, soda is carbonated drink, apples will oxidize when peeled for a long time, and gas burns to turn into carbon dioxide, etc.

Vinegar is acidic and can dissolve limescale (calcium carbonate).